Noiseless blower for locomotives



H. E. HARRIS AND L. O. SWAIM.

NOISELESS BLOWER FOR LOCOMOTIVES. APPLICATION FILED JUNE 23, 1919.

H Patented May 23, 11922.

gwwwbozs p isi enaa.

till. a

"tr "l "an ll l t l l *ZHUBJEBT E. I-IAltRIfi AND LEE 0. SVVAI'M, Oil-J .llfillillihllili, GEORGIA, ASSIGNORS ONE- THIRD T0 J". 11". IPIEGYEKARLO, O1 ATLAIZFTA, GEORGIA.

norsnnnss.

1'0 all whom it stay concern i Be it known that we, l-lnnnn" ll .l'liinms and Let 0. SWAIN, citizens oil. the United States, residing-at Atlanta, in the. county of Fulton and State of Georgia, have invented certain new and useful. improvements in; Noiseless Blowers for Locomo- 'tives; and we do hereby declare the follow ing to be a full, clear, and er-zactdescription of the invention, such as will enable others skilled in the art to which appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

atingr the draft from the boiler furnace, and

which is necessary when the locomotive stops the supply of steam being turned 011 by the fireman for the purpose oi": creating); a draft while the locomotive is standing and which. creates a deafening noise, which is very objectionable.

It is the object of: the present invention to avoid this nuisance and at the same time to cause the smoke to be drawn through the staclr at its maximum capacity and practically noiseless.

The invention coniin'iscs a simple and et tioiont device of this character having; various details of constniction, combination and arrangement of parts which. will be hereinafter fully described, shown in the accompanying drawings and then specifically defined in the appended claims. l

Our invention is illustrated in the accoinpanyinp; drawings which, with the letters of reference marked thereon, form a part of this application, and in which:

Application filed .Tune as,

nrlownn iron LOCOMOTIVES.

Specification of Letters Patent. Pp timmtqmll lltlet'fy' 23w, llllll il fa 191s. Se1*ia11\'fo.306,013.

l igure l. is a central vertical, longitudinal sectional view through the Forwardportion of the boiler of a locomotive.

Figure 2 is a sectional view on line of Figure 1., and l l Figure 3 is an enlarged detail view.

, Reference now being-r had to the details of the drawings by letter:

A designates the usual boiler of a locomotive and B the stack. Said boiler is provided with the usual table sheet C extendinp horizontally across the forward portion oi? the boiler and D designates a draft sheet projecting); downward at an angle as shown, and extending); the width of the chamber in. which it is positioned. A wire netting E is interposed between the forward ends of the table sheet and the top of the boiler and through which the smoke is drawn by draft into the portion of the chamber above the table sheet which communicates with the smoke stack.

..he exhaust'nozzlc F is positioned centrally in alinement with and spaced apart slight distance from the stack in the usual manner. tubular pipe H is supported upon the table sheet about the upper portion of the nozzle spaced apart from the upper end. thereof a slight distance, the said tubular pipe being tastened secin'ely in place in any suitable manner and provided \i'ithn plurality o't nozzles K which are disposed preferably at inclinations, so that jets of steam directed through the same are collocated into conoidal formation with the apex within the prtt-icoat of: the stack, and substantially parallel with its sides.

at steam supply pipe ill loads to and 0011') n'ulnicates with said circular pipe wh ch has said nozzles and which is adapted to coinnumicate with a steam bung, not shown, the

supply of steam bcinc regulated through a valve .rnechanisni within control oi the fire-v ll hen the locomotive stops and it is dc sired to maintain an artificial draft, the operator by turning on the live steam may cause the same to be jetted through the nozzles into the smoke stack and thereby distributing the suction area caused by the in jection of the steam intovarious parts of the smoke stack, and which will cause smoke from the furnace to be drawn through the stack to the limit of its capacity, and owing to the breaking up of the jets of steam by their being directed at dilierent angles to one another into the smoke stack, the noise incident to the escaping steam is muiiled and reduced to a minimum.

By the provision of the apparatus em bodying the features of our invention, it has been demonstrated by experience that the combustion of the fuel is greatly accelerated, and effecting also an appreciable saving of fuel.

lVhat we claim to be new is:

1. The combination with a locomotive smoke box of a stack leading therefrom and provided with a funnel at its inlet'end and. a jet ring the center of which lies in the extendedaxis of the stack, said jet ring provided with nozzles inclined toward the axis in position to deliver actuating; lluid in directions parallel to the walls of the tunnel and lying in a cone the apex ol which is within the stack.

2. The combination with a locomotive smoke box of a stack leadingtherefrom and provided with a funnel at its inlet end. a main exhaust nozzle, an unpartitioned tubular jet ring the center of which lies in the extended axis of the stack, and a passage between the main nozzle and the jet ring. said jet ring provided with nozzles in juxtaposition to the funnel and inclined toward the axis in position to deliver actuating lluid in directions parallel to the walls of the turn nel and lying in a cone the apex of whichis within the stack.

In testimony whereof we hereunto aflix our signatures in presence of two witnesses.

HUBERT l9. llAltlllH. LEE 0. SWAIN.

Witnesses H. M. GinMnn, J. G. CUMsmon'rT. 

